R Introduction: Part I
BEGINNER
#R
Author: Oleksandr Lomako
Course description
R is one of the most popular programming languages among data analysts and data scientists. R has a wide community that will always help you with any problem. Also, R has tons of different packages designed to solve various problems. The language can be easily applied to statistics and data analytics problems. In the first part, you will be introduced to the very basics of R and will deal with single 1-D values of different types.
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Basic Syntax and Operations
In the first section, you will consider the very basics of R - outputting and performing basic operations. You will finish the section with the variables theory.
Hello, R!
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Integer Division and Remainders
Exponentiation
cat() Function
Variables
Challenge
Assignment Ways
Vectors
In the second section, you will learn the vector class in R, which represents single values too. You will consider the main data types for single values and how to work with multiple values of a kind at once.
What is a Vector?
Numbers
Complex Numbers
Converting
Logical Type
Vectors
Namings
Indexing
Modifying
Deleting
Operations with Vectors
Factors
Factors (or categorical variables) are widely used in real life. These are blood types, currencies, nationalities, brands, etc. Unlike numerical variables, factors are limited to a finite number of values.
What is a Factor?
Indexing
Levels
Summary
Intervals
Challenge